In beta-minus decay which force exchange particle is involved?

Which of the following does not give the correct exchange particle for the process?

When bombarded with an α particle the nuclide ²⁵₁₂Mg changes into another nuclide with the emission of a neutron and γ radiation.

What are the correct values for the nucleon number and proton number of the nuclide which is formed?

Electron capture can be represented by the following equation.

p + e^– → X + Y

Which row correctly identifies X and Y?

The nucleus of ⁹₄Be captures a proton and emits an α particle. What is the product nucleus?

An electron collides with a neutral atom and ionizes it. Which of the following describes the particles present after the collision?

Artificial radioactive nuclides are manufactured by placing naturally-occurring nuclides in a nuclear reactor. They are made radioactive in the reactor as a consequence of bombardment by

In a nuclear reaction ¹⁴₇N is bombarded by neutrons. This results in the capture of one neutron and the emission of one proton by one nucleus of ¹⁴₇N. The resulting nucleus is

Two gamma photons are produced when a muon and an antimuon annihilate each other. (muon E₀ = 105.7 MeV)

What is the minimum frequency of the gamma radiation that could be produced?

Which equation shows the process of annihilation?

Which graph best shows the relationship between photon energy E and wavelength λ of a photon of electromagnetic radiation?

When He²⁺ particles were fired at a thin sheet of gold, about 1 in 8000 of the particles were detected at point Q. What conclusion can be drawn from the detection of He²⁺ particles at point Q?

In the early twentieth century the apparatus shown in the diagram was used to investigate atomic structure. When He²⁺ particles were fired at a thin sheet of gold, most of the particles were detected at point P. What conclusion can be drawn from the detection of He²⁺ particles at point P?

Which of these correctly shows the numbers of sub-atomic particles in a ⁴¹K⁺ ion?

Which of these atoms has the largest atomic radius?

An iodine nucleus decays into a nucleus of Xe−131, a beta-minus particle and particle Y.

Which is a property of particle Y?

The graph of neutron number against proton number shows three nuclei P, Q and R.

Which row identifies an isotope of P and the nucleon number of this isotope of P?

When a nucleus of the radioactive isotope ⁶⁵₂₈Ni decays, a β^– particle and an electron antineutrino are emitted.

How many protons and neutrons are there in the resulting daughter nucleus?

The composition of a carbon dioxide (CO₂) molecule is one atom of ¹²₆C and two atoms of ¹⁶₈O.

What is the number of molecules of CO₂ in 2.2 kg of the gas?

Which of the following nuclei has the smallest specific charge?

What is the best estimate for the order of magnitude for the diameter of an atom?

Which nucleus has a smaller value of specific charge than the nucleus ¹⁸₈O?

Which of the following shows electron capture?

Which of the following shows β⁺ decay?

Which of the following shows β^- decay?

Which of the following shows a proton-antineutrino interaction?

Which of the following shows a neutron-neutrino interaction?